High voltage DC contactor, normally open type (SPST-NO), 50 amps rated load current of contact circuit, available with 12V or 24V coils, the connection of contact and coil need to be nonpolarity. It is widely used in the DC high voltage field, such as electric car, wind power generation, DC power supply control system and so on.

High current contactor, designed for DC loads, contact circuit rated load current is 600A, one normally open contact which has excellent conductivity. Single pole contactor, cheap price and manufacturer direct sale.

The product has one normal open contact, has been designed for direct current loads, particularly for electric vehicle, telecommunication equiment, car batteries, trains, ships, electronic control system.50A DC Contactor Features

50 amps rated load current of contact circuit.

12V, 24V, 48V DC coil rated voltage for selection.

Continuous operation duty.

Easy and quick installation, available any way to install.

Mechanical life up to 300 thousand times.

Specifications

Basics

Model

ATO-AZJ50

Body Size

56*38*57 mm

Weight

180 g

Technical Parameters

Coil Rated Voltage

12V/24V/48V

Rated Load Voltage

12~72V DC

Contact Circuit Rated Load Current

50 A

Contact Form

1 NO

Overload Current

≤7 le

Coil Power

≤5.5 W

Main contact voltage drop at 100A

≤100 mV

The Allowed Range of Coil Voltage

±20%

Pull-In Time (N/O Contacts to Open)

≤30 ms

Drop-Out Time (N/O Contact to Close)

≤20 ms

Insulation Resistance

≥50 MΩ

Dielectric Withstanding Voltage

50Hz/60Hz 1500VAC/Min

Electric Life

Continuous 30000 times

Mechanical Life

300 thousand times

Environment

Operating Temperature

-25℃~55℃

Operating Humidity

5~95% RH

International Protection

IP 50

ATO-AZJ50 DC Contactor Circuit Diagram50A DC Contactor Installation DiagramTips: Different Functions between contactor and relayPrimary function of a relay is to detect, transmit, convert or dispose the signal, it's on-off current is generally small. The relay is usually used in a control circuit to control the weak signal.Primary function of a contactor is to connect or disconnect the main circuit. The main circuit refers to the one whose working situation is determined by the connection of this circuit. The concept of main circuit corresponds to the control circuit, generally, the current of a main circuit is larger than that of a control circuit.In general, a contactor with large capacity is equipped with an arc chute. The contact capacity of a relay will not exceed 5A, that of a midget relay may be 1A or 2A. However, the minimum contact capacity of a contactor could be 9A. Contacts of the contactor usually have three pairs of main contacts (the main contacts are normally open contacts), it also has several pairs of auxiliary contacts.However, contacts of a relay is generally not divided into main contacts or auxiliary contacts. Sometimes, contacts of a relay are set in pairs, namely the normally open contacts and normally closed contacts are combined, while that of a contactor are not in pairs. As for specific needs, the relay will combine with other equipment into a time relay, a counter or a pressure relay, which has the additional functions, but a contactor doesn't have.